Magnetic 'Spin Battery' Announced

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SUMMARY

The recent announcement of a magnetic 'spin battery' demonstrates a significant advancement in energy storage technology. This device reportedly produces a voltage over a hundred times greater than anticipated and maintains functionality for tens of minutes, surpassing initial expectations of milliseconds. Current lab prototypes exhibit a self-discharge issue, limiting their operational time to approximately 10 minutes. The discussion raises questions about the energy storage density of spin batteries compared to conventional chemical batteries and fuel cells.

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  • Basic principles of spintronics and its applications in energy systems
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sanman
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Has anybody heard of this concept?

http://www.sciencedaily.com/releases/2009/03/090311162807.htm

Somebody seems to have now actually shown one in practice. A magnetic 'spin battery'.

Can anyone tell me if this thing is supposed to be capable of greater energy storage density than a conventional chemical battery? Is it capable of even having greater energy storage density than a chemical fuel cell?

What kind of energy density should it have, in Wh?
 
Engineering news on Phys.org
no, it's all voodoo to me. a primer on spin would actually be nice.
 
So far, the lab prototypes hold up for 10 minutes, or so, before self discharging. I think that's what I read...

"We had anticipated the effect, but the device produced a voltage over a hundred times too big and for tens of minutes, rather than for milliseconds as we had expected,"
 

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